Common areas covered: CI/CD Pipelines: Jenkins, GitLab, GitHub Actions, ArgoCD Containers & Orchestration: Docker, Kubernetes (Pods, Deployments, Services, Ingress, Helm) Cloud Platforms: AWS EC2, S3, IAM roles, Load Balancers, VPC, etc. Infrastructure as Code: Terraform, CloudFormation basics Monitoring/Alerting: Prometheus, Grafana, ELK Stack Scripting: Bash, Python (for automation)